commutating frequency 中文意思是什麼
commutating frequency
解釋
換接頻率- commutating : 換向的
- frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
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The microprocessor is used to realize digital control as flip plus of the scr. the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system. furthermore in the zero - current detection circuit, use the photocoupler gaalas ired and photo ic to detect zero - current, furthest shorten the commutating " died region ", prevent the current from distorting
設計中採用單片機控制可控硅的觸發脈沖，實現數字化控制，並利用mitel公司的三相pwm交流電機脈寬調制晶元sa866ae ，成功研製了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。 -
By using phase shifting control between right bridge leg and left bridge leg, the output cy cloconverter commutating while the bi - polarity three - state high frequency ac volage from the input cycloconveter is zero, . and commutation overlap of the output cycloconverter and polarity selection of the input voltage, the leakage inductance energy and the output filtering inductance current are naturally commutated, and zvs switching of the output cycloconverter are realized, the surge voltage and surge current of the output cycloconverters are overcome
通過輸入周波變換器右橋臂相對左橋臂的移相，讓輸出周波變換器功率開關在輸入周波變換器輸出的高頻交流電壓為零期間進行換流，並藉助輸出周波變換器換流重疊和輸入電壓極性選擇，從而實現了變壓器漏感能量和輸出濾波電感電流的自然換流、輸出周波變換器的zvs開關，解決了輸出周波變換器固有的電壓過沖和環流問題。
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